To all whom it may concern



@eine tatesstent ffies.

ETHAN ROHENEY, OF SOUTH BOSTON, MASSACHUSETTS.

Letters Patent No. 80,807, dated August 11,I 1868.

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TO ALL WHOM IT MAY OONCERN:

Be it known that I, ETHAN R. CHENEY, of SouthBoston, in the county of Suffolk, and State of Massachusetts, have invented certain new and useful Dies for Cutting Toe-Calks for Horse-Shoes and I do hereby declare the following to be a full, clear,7 and exact description thereof, reference being 'had to the accompanying drawings, which are made a part of this specification.

My invention relates to a'novel construction of dies for forming toe-calks for horseeshoes.

The bar used is of. I-form, in transverse section, and being placed in any disk, iscut at one or more operations, as may be preferred, into the desired form of calk, two being simultaneously produced from each length.

In the drawings- 1 Figures 1 and 2 represent, in perspective, the male and female dies for performing th'e first part of the operation, as done by two sets of dies.

Figure 3 is a perspective View of the bar as it comes from said dies.

Figures 4 and 5.r'e`present, in perspective, the reale and female finishing-dies, and

Figure 6,;l a perspective. view of two finished calles in the relative position they are cut fronrthe barn Figures Tand 8 represent, in perspective, the male and female dies for'cutting the complete calks from the bar at one operation.

The bar of metal, A, is produced by rolling, Vin the usual way, of the form represented in iig. 3,'except the perforation; andcon'sists of two pentagonal pbrtions or ribs a al, joined by a double concave diaphragm or web, a2.

This form adapts it to cut the calks with the greatestadvantage, two being produced from eacli length, withl their .steadypins both formed from -thc diaphragm. i

In the set of dies represented, for forming thc calks at two operations, (the preferred mode,) B represents the male, and B the female punching-die, and C the male, and C the female finishing-die. The cutting-part@ or bitb of the die Bis of rectangular form, of such length and width as to adapt it to cutaway the diaphragm a2 of the bar the distance required between the steadypins of'two calks, and enters an aperture, bl, of corre` spending form in the die B. A stop, Z13, being'provided against.I the bar A, is placed to regulate the postion of the apertures a3 made by said bit. The face or upper surface of the die B', as ofeach of the other female dies, is provided with `ribs and depressions to match the surface of the' bar A, said surface ofv the die being, if preferred, sligbtlydepressed in the centre, so as to bend the bar transversely somewhat, to facilitate cutting it. The bit e of thevdie C is of suiicient width to cut entirely across the bar, and of the same length as the callrs it is to produce. It isA slightly concave, or inwardly bevellcd, to adapt it to cut off the metal more easily, and is provided with a downward projection, e*, slightly tapered, which, enters the aperture ava in the bar, formed by the dies B B', and thus holdsl the bar in a prop er position to have the calks removed bythe cutting-edges ofthe bit. It also serves to support the steady-pins ofthe calks while they are being formed. At each end of the' projection c* thebit is provided with a rectangular recess, e, having in one of its corners a segmental cutter, cifii, projecting a suflieient distance below the surface of the bit proper, to form the steady-pins, before the callrs are severed. The die C has formed in it a recess, cl, of corresponding outline to the bit c, for the reception of said bit; it b eing of rectangular forni, with convexities or fillets c*, of corresponding form to the recesses ei* at each end. The cutters cki* are located on opposite side's of the bit, and form the steady-pins of the shape and in the relative position represented in g. 6.

In theform of dies represented in gs. 7 and S, the callrs are cut complete from the bar, at one operation, by substantially the same means employed in the form .described above, combined in one pair of dies. D represents the male, and D the female die.` The former has a bit, d, ofthe same form as that, c, of the finishing-die of the before-described set, except that instead of the yprojection 0*, it has a recess, d, corresponding with c**, and extending entirely across its face longitudinally. I i

The cutters dt'ii* for forming the steady-pins are formed inrthe recess d, in the same relative position as those of C; i

Rectangular apertures ddf, having inwardly-projecting notches d* rZ* arranged at their opposite ends, are provided in the die 'DQ'for tbereeeption of the bit d dit* The bar being placed in these dies, has cut from it, at eaeh operation, two tive position asthose formed by the dies B and C, leavingr the waste in a continuousstrip. 1

I propose, in practice, to `construct the female dies with a face suiciently concave in its longitndinal'planc to impart to the ealks the proper curve to match that of the shoe.

The diierent dies may be mounted and operated in any suitable manner. v

Having thus described my invention, I claim as new therein, and desire to secure by Letters Patent- The dies B B and C C', or their equivalent, constructed and operating substantially as described for the purpose specified.

ETHAN R. CHENEY. Witnesses;Y

SvLvns'rnn M. FosDIGK, WM. B. HARDING.

complete calks, in thevsame rela- 

